But if you disconnect the line entering the trans cooler, nothing much happens when you start the engine until you take the trans out of park. I don't know enough about automatic transmissions to know why it show the same PSI numbers in park and neutral. Just know that there is flow in neutral.This was addressed in previous posts. Citing a '68 FSM for example, it states that in park while running, psi pressures are as follows; line- 5-30, converter-5-30, lubrication--5-30. In neutral they are 55, 30-55, and 5-30 respectively. Interestingly, the lubrication psi is identical both in park and neutral.
If the pressures were too low or non-existent in park it probably wouldn't take long for the front seal to be wasted, hence the consistent lubrication psi.But if you disconnect the line entering the trans cooler, nothing much happens when you start the engine until you take the trans out of park. I don't know enough about automatic transmissions to know why it show the same PSI numbers in park and neutral. Just know that there is flow in neutral.
So what you are saying is that the pump pumps to the front seal even in park......?If the pressures were too low or non-existent in park it probably wouldn't take long for the front seal to be wasted, hence the consistent lubrication psi.
This is the oil distribution (5-30psi) while in park.So what you are saying is that the pump pumps to the front seal even in park......?